The talk show host who invited viewers to "Fire up a colortini, sit back, relax, and watch the pictures, now, as they fly through the air." was Tom Snyder (1936 - 2007). He is now best known for being the host of "The Tomorrow Show" which was on TV from 1973 to 1982.

Snyder's statement about a "colortini," was made by him during his time with CNBC. He pointed out that this was the drink you should enjoy while watching his show ("Fire up a colortini, sit back, relax, and watch the pictures, now, as they fly through the air."). For his 1990s CBS show, "The Late Late Show," he redubbed the mythical drink a "simultini" as his show was also heard on selected radio stations.

Also Snyder's "The Tomorrow Show" was unique and stuck exclusively to doing personal interviews. He invited intellectuals onto his show who liked to discuss heavy topics. They seemed to relish the opportunity to delve into their own smarts. Plus, unlike most other talk shows, "Tomorrow" had no live audience which often encouraged excellent conversations unhampered by a reaction from a studio audience.

Also it is known that Snyder's show did not burst into national consciousness until Dan Aykroyd of “Saturday Night Live” began performing a dead-on impersonation of him. "The caricature by Aykroyd almost overtook the original with the public."

More Info: en.wikipedia.org